merge revision(s) r44577,r45097,r45330,r45331,r45354,r45356: [Backport #10033]

	cptr.c: unused variable

	* ext/dl/cptr.c (rb_dlptr_inspect): remove no longer used variable.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@47036 b2dd03c8-39d4-4d8f-98ff-823fe69b080e